If you love Bloc Party and all this current post-punk stuff at the moment I strongly suggest you get the "Boys Dont Cry" album. You'll want to slap Robert a LOT less than one should really stick one on Kele, the po-faced old moaner.
Hmmm, they were a great group for me, but pretty much everything post Disintegration is just a bit dull. That said, when they were good, they were fantastic. Primary, Just Like Heaven, The Walk, Killing An Arab, Hanging Garden... Oh, I could go on.
For me they peaked around 1985-1987.....the Head On The Door album (with Close to Me and Inbetween Days), then the imperious Standing On A Beach singles collection, followed by the wild and wonderful double album Kiss Me Kiss Me Kiss Me. It felt like Robert Smith's muse was on an unstoppable, giddy roll.